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Tuesday, February 5, 2013

Salman

Fill in the blanks using elementary row trading operations to form a row-equivalent matrix.

106 1 0 ?10 6 00 ?1 8

1 0 61 0 1 0 0 0 1

2. /6.66 pointsLarPCalc8 8.1.046.MI.

Write the matrix in row-echelon form. (Note: Row-echelon forms are not unique.)

12 ?16 37 ?57 ?2 ?1 ?3 11

2?1

?2

3. /6.66 pointsLarPCalc8 8.1.058.MI.

1| 2| ?2| 25| 0| 1| 1| 7| 0| 0| 1| 5|

Write the placement of elongate equations represented by the augmented matrix. Then use back-substitution to solve. (Use the variables x, y, and z, if applicable.)

(x, y, z) =,,

4. /6.66 pointsLarPCalc8 8.2.010.MI.

fuck off x and y.

x + 2 43

2 2y2x=

3 9 y + 2

2x + 6 4 3

2 8 8

3 9 2

x =

y =

5. /6.66 pointsLarPCalc8 8.2.030.

Solve for X in the equation, given the following matrices.

2X = 2A B

130 1

A =1 3

11

andB =04

34

X =

6. /6.66 pointsLarPCalc8 8.3.014.MI.

realize the inverse of the matrix (if it exists). (If an answer does not exist, enter DNE.)

15

2 11

7. /6.66 pointsLarPCalc8 8.3.020.MI.

Find the inverse of the matrix (if it exists). (If an answer does not exist, enter DNE.

)

8| 3| 6| 3| 1| 2| 6| 2| 5|

8. /6.66 pointsLarPCalc8 8.3.044.

Use the inverse matrix

?3 2 ?2 1 to solve the system of linear equations.

x ? 2y = ?2 2x ? 3y = ?6 (x, y) =,

9. /6.66 pointsLarPCalc8 8.4.030.

Consider the following.

5| ?2| 0| 2| 3| 2| 2| ?6| 2|

(a) Find all minors of the matrix.

M11 =

M12 =

M13 = M21 = M22 = M23 = M31 = M32 = M33 =

(b) Find all cofactors of the matrix.

C11 = C12 = C13 = C21 = C22 = C23 = C31 = C32 = C33 =

10./6.66 pointsLarPCalc8 8.4.040.MI.

Find the determinant of the matrix. Expand by cofactors on the row or column that appears to make the computations easiest....If you want to get a all-embracing essay, order it on our website: Orderessay